共查询到19条相似文献,搜索用时 125 毫秒
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1,3-二羟基丙酮衍生物的合成 总被引:1,自引:0,他引:1
以五氧化二磷为引发剂,二甲亚砜氧化1,3-二芳氧基(烷氧基)-2-丙醇化合物合成了一系列1,3-二羟基丙酮衍生物.通过IR和^H NMR对化合物进行了表征. 相似文献
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α,α-二乙酰基二硫缩烯酮和芳醛的缩合反应研究 总被引:4,自引:0,他引:4
在碱性条件下,α,α-二乙酰基二硫缩烯酮和芳醛的缩合反应受烷硫基的影响.α,α-二乙酰基二苄硫缩烯酮1和芳醛3缩合生成单面缩合脱乙酰基产物α-肉桂酰基二苄硫缩烯酮4;α,α-二乙酰基环二硫缩烯酮2和芳醛3缩合生成双面缩合产物α,α-二肉桂酰基环二硫缩烯酮5. 相似文献
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芳香醛与3-甲基-1-苯基-5-吡唑啉酮固相缩合反应的研究李晚陆,麻洪,王永梅,孟继本(南开大学化学系,天津,300071;兰州大学应用化学重点实验室)摘要研究了芳香醛与3-甲基-1-苯基-5-吡唑啉酮在室温固相、熔融状态及Lewis酸催化下的缩合反... 相似文献
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AScopeStudyofCondensationof1,3-DiketoneswithDiethylAcetonedicarboxylateZHONGZhen-qi,TANGHui-tong,ZHANGPang(DepartmentofChemis... 相似文献
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用X-射线晶体结构衍射测定了吲哚醌缩吉拉尔特试剂T(C13H18N4O2Cl)的晶体结构。该晶体属单斜晶系,空间群P21/n, a =12.250(2),b = 13.631(2), c = 9.777(1) ?,β= 113.506(7) °,V =1497.1(4) ?3,Mr =297.76,Dc =1.321g/cm3,m =2.6cm-1,F(000)=628,Z =4,R =0.0715,wR =0.1843, (I>2σ(I))。晶体结构呈蝎形,由于空间位阻的影响,该配体很难与金属离子形成配合物。 相似文献
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1 INTRODUCTION Synthesis of transition-metal complexes with Schiff-base has been a subject of considerable im- portance[1, 2]. These complexes are not only good coordination agents for Schiff-base, but also good bactericide and antitumour agent[3, 4]. A number of hydroxypyridinones are nontoxic compounds that have been applied in bioinorganic chemistry over many years[5], and their iron(III) complexes have been assessed for the amelioration of anaemia[6]. They have also been examined … 相似文献
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LU Zai-Sheng② NIU De-Zhong LI Xiu-Ling 《结构化学》2003,22(5)
1 INTRODUCTION 3-Hydroxy-2-methyl-4-pyranone (maltol) and 3-hydroxy-2-ethyl-4-pyranone (ethylmaltol) are nontoxic compounds that have been applied to bio- inorganic chemistry over several decades[1, 2]. Their iron(III) complexes are relevant to the control of iron levels in the human body. Such complexes have been assessed for the amelioration of anaemia[3] and their respective ligands have been tested for the removal of excess burdens of iron in diseases such as siderosis, haemochroma… 相似文献
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苄氧羰酰氯与四氢噻唑-2-硫酮在三乙胺存在下反应生成了3-苄氧羰基四氢噻唑-2-硫酮。在甲醇中培养了标题化合物单晶,用X射线衍射法进行了结构表征。晶体结构属三斜晶系,P1间群,晶体学参数:a=0.6274(2)nm,b=0.7340(3)nm,c=1.2976(4)nm;α=100.73(3)°,β=94.53(3)°,γ=103.28(3)°,Z=2,Mμ=4.30cm-1.分子中的>C=O与>C=S基团处于C(4)-N-C(1)键的同侧,为顺式。用PM3分子轨道方法研究了该化合物的电子结构,得到电荷和键序分布以及前线轨道等性质。 相似文献